Wood-pulp machine



(N6 Model.) I 2 Sheets--Sheet 1.

F. DILTS.

WOOD PULP MACHINE.

WITNESSES:

INVENTOR WW5 pg 0% M (No Model.) 2 Sheets-Sheet 2.

P. DILTS.

WOOD PULP MACHINE.

No. 403,658. Patented May 21, 1889.

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ATTORNEYS n. PETER8, Phcloliflwmphlr, Wnninpon. I). C.

7 UNITED I STATES PATENT OFFICE.

FRANK DILTS, OF FULTON, NEIV YORK.

WOOD-PU LP MACHINE.

SPECIFICATION forming part of Letters Patent No. 403,653, dated May 21,1889.

Application filed June 30, 1888. $erial No. 278,668. (No model.)

To all whom it may concern:

Be it known that I, FRANK DILTS, of Fulton, in the county of Oswego, inthe State of New York, have invented new and useful Improvements inVood-Pulp Machines, of which the following, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

In said drawings, Figure 1 is a side elevation of a machine embodying myimprove ments. Fig. 2 is avertical transverse section on line as,Fig. 1. Figs. 3 and 4c are enlarged transverse sections, taken in planesat right angles to each other, of one of the wood-holding boxes with theadjacent portion of the stone or grinder and the cylinder and piston bywhich the wood is held against the grinder.

Fig. 5 is a transverse section on line y y,

3; and Fig. 6 is a top plan view of the side plates upon which thewood-holdin g boxes are mounted, and showing the series of perforationsin the flanges of said plates which permit the said boxes to be adjustedin their positions.

Similar letters of reference indicate corresponding parts.

The object of my invention is to render each of the wood-holding pocketsadjustable independently of the others to conform to the wear anddiminution of the diameter of the grinder without necessitating theadjustment of the entire box; and the object of the invention is also toallow the boxes to be shifted on the periphery of the plates whichinclose the grinder and support said boxes, said shifting of the boxesbeing designed to equalize the wear on the axial bearings of thegrinder; and to that end my invention consists in the improvedconstruction and combination of parts,

as hereinafter more fully described, and specifically set forth in theclaims.

F represents the main supporting-frame of the machine, which frame is ofrectangular form or elongated and secured in a horizontal position. Tothe top of the side walls of said frame, at the center thereof, aresecured the pillow-blocks (Z d, in which is journaled the shaft of thegrinder or abrading stone A. From the central portion of the aforesaidside walls rise two segmental plates, P P, which are concentric with theaxis of the grinder or stone A and have a radius only slightly greaterthan that of the latter, so that peripheries of the plates are inproximity to that of the grinder. Said plates are provided withoutward-projecting flanges a a 011 their peripheries, and these flangesare each provided with a series of perforations, a a, as shown in Fig. 6of the drawings,for the purpose hereinafter explained.

B B and B B designate the boxes in whiclis deposited the wood to beground to pulp by the stone A. These boxes I mount on the flanges a a ofthe plates P P, so as to project radially outward therefrom, as bestseen in Fig. 1 of the drawings. vided near their bases with flanges b b,by which they are seated on the flanges a a, and by means of bolts 0 c,passing through the flanges a, the boxes are secured in their respectivepositions. The latter flanges, being provided with a series of saidperforations, as hereinbefore stated, allow the boxes B B to be shiftedto different positions on the peripheries of the plates P P, and thusthe directions of the pressure of the wood in the boxes against thestone A can be changed to change the location of the wear on the axialbearings of the stone or grinder accordingly.

In order to better sustain the boxes against lateral displacement, Iform the side walls of the boxes with extensions B B", which restagainst the inner sides of the plates P P, as shown in Fig. 2 of thedrawings.

The two boxes B B, I provide also with longitudinal flanges a, by whichI mount them on the top of the end portions of the frame F, and thusdispose said boxes nearly or quite horizontally and diametricallyopposite each other, as shown in Fig. 1 of the drawings. By thisarrangement the pressure upon the stone A from opposite directions isequalized and the downward pressure upon the stone from the wood in thesaid two boxes is obviated. Each of said boxes I preferably set withtheir longitudinal central line a short distance back of and parallelwith a radial line extending from the axis of the stone A, as indicatedby the dotted line it in Fig. 3 of the drawings. Said position of thebox obviviates the danger of the wood becoming wedged between thetransverse edge of the box and face of the stone A.

Inasmuch as the grinder A is subjected to Said boxes being pr0= 1 WW1 is wa as f n o e id ha 1 wear and abrasion and consequent diminution ofits diameter, and it being essential to maintain the wood-supportingboxes in close proximity to the periphery of the grinder, I render eachbox adjustable independently of the other boxes and without disturbingthe entire box. This I accomplish by'pl bYi' dingl each box individuallywith gates Z Z, which are maintained parallel to each other throughouttheir adjustment by being seated adjustably longitudinally on parallelguides n n on opposite sides of the box and being passed throughthe endof the box, and engaging screw-threaded eyes in lugs 25, rigidlyattached to or formed on the gates,'a's illustrated in Fig. 3 of thedrawings.

0 represents acyli der firmly secured to the fre nd of th bo'x and 'aially in e here wit aid attachme t crui n he 'y ihders to be m ed th heWeedld boxes B n he adj st n Of th la t a 'i' 1 .1 peripheries oftheplates? P, as before stated. p is a piston in said cylinder and rigidlyattached to the piston rod' e, which passes thmug a s u fina m On t e.110K and nt ',theiiiterior of said box, in the latter is a new; fi tta hto the p s on-rod an bearin it O- t? be un hl l p ess-l ure required forholding the wood against the 3" t re b s to e oun he e y s obta ned by Wt i' si i nd ou h a po t, 5 19 a e ac Qf the pi WfiiHthQdS iM w -kn wnma in In order to allow the follower to obtain a p fe t ar 0, the Wood da o obvia e rs ona s a n Q e pis on e 1 ase h really t the other, Iprovide the face of the follower Witli' feet or projections f! f 5andconnect the piston-rod e to the follower by a knuckle-jointconsisting of ahead, 71, which is attached to the end of said rod andformed with a pivotal bearing and seated movably in a correspondingsocket, g, in 'theback of the follower. A lateral groove, h, leading tosaid socket, allows the head 'i to be introduced therein.

' Ha'vin g described my invention,what I claim if:

ent, isi "11 In ,cQmbin tion with thejgrinder A, the

segmentalplates P, provided with flanges a won their entire peripheries,the wood-holddapt-ed to bsli 'fies n the d rection o lenstlrqfi the esand, adiiritahlr se ured h ete'a dth'e y ers 0. L Q

and fhownf com i a ion with the g inder Aan segmentalside plates, P P,the'lwoo holding boxe B. mounted on t e periph, o a

time an eiena sp wa anm .Qma a revue-t whet re ;zz'adiu ememar and fromhe ar fr an mainta ned lia al fe th mi qut the r djustm nt as et firth.-

' lnt'ibimgi yWhrzt ha e' iereimtqsisned myiwme in the p esence of "WV?Witness s, a Syrac se; n t e ounty of nonda a i th as new, and desire tosecure by Letters Pat- ,ing boxes B B, mounted on said flanges and pState of New Yere th s iith .1a f June,

' FRANK. QIIJ FS-- [L Witnesses: 7

'C'- i E L, J- J- Mes -i l

